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Finding the Fourth Proportional to 8,841.63, 13,262.65 and 2,916.62

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Solution

The fourth proportional to 8,841.63, 13,262.65 and 2,916.62 is: 4,374.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,841.63 : 13,262.65 = 2,916.62 : x
  2. Step 2: Convert to fraction form
    8,841.63/13,262.65 = 2,916.62/x
  3. Step 3: Cross multiply
    8,841.63x = 13,262.65 × 2,916.62
  4. Step 4: Simplify right side
    8,841.63x = 38,682,036.64
  5. Step 5: Solve for x
    x = 38,682,036.64/8,841.63
  6. Step 6: Final answer
    x = 4,374.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.